docs: def dpkg_buildpackage(*args,**kwargs):
      cwd=kwargs.pop('cwd',None)
      if len(kwargs)!=0:
          raise ValueError('only kwarg can be "cwd"')
      "call dpkg-buildpackage [arg1] [...] [argN]"
      args = ['/usr/bin/dpkg-buildpackage']+list(args)
      process_command(args, cwd=cwd)